HDD rewrite bad sectors
Posted: Tue Jan 16, 2024 2:09 pm
I'd run a long selftest
check the smart information for the unreadable sector, lets call it 'X'
change the syscontrol and try writing to the sector. Change the 'X' below
check the smart information to see if 'Current_Pending_Sector' went to 0, you may need to repeat some of the steps multiple times if there are multiple unreadable sectors..
Now run another smart test and hopefully it can complete without error.
Now run a scrub (either from the gui or with 'zpool scrub poolname').
Check the scrub's status and hopefully it fixes some errors.
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smartctl -t long /dev/ada2check the smart information for the unreadable sector, lets call it 'X'
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smartctl -A /dev/ada2change the syscontrol and try writing to the sector. Change the 'X' below
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sysctl kern.geom.debugflags=16
dd if=/dev/zero of=/dev/ada2 bs=4096 count=1 seek=X conv=noerror,synccheck the smart information to see if 'Current_Pending_Sector' went to 0, you may need to repeat some of the steps multiple times if there are multiple unreadable sectors..
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smartctl -A /dev/ada2Now run another smart test and hopefully it can complete without error.
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smartctl -t long /dev/ada2
smartctl -A /dev/ada2 #check status to see if it completedNow run a scrub (either from the gui or with 'zpool scrub poolname').
Check the scrub's status and hopefully it fixes some errors.
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zpool status -v poolname